電気学会論文誌C(電子・情報・システム部門誌)
Online ISSN : 1348-8155
Print ISSN : 0385-4221
黒目径を基準とした自動焦点補正機能を搭載した瞳孔計測システム
飯島 淳彦南谷 晴之灰田 宗孝石川 則夫太田 善久植野 彰規西村 実篠原 幸人
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2002 年 122 巻 9 号 p. 1651-1657

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We developed a new measurement system of pupil area with camera position adjustability using iris diameter, which size is constant regardless of automatic nervous system. The camera probe consists of a small CCD camera, infrared LEDs, and a stepping motor. The motor can adjust camera position to an optimum distance in order to get sharp eye images. Pupillary response to cholinergic antagonist was a diagnostic method for Alzheimer's disease. It is very important for diagnosis of dementia to analyze pupil size precisely. We used the new detection system for the pupil test. In this study, we evaluated the auto focus function by detecting model eyes and patients' eyes. The results by using this system show that the proposed system can measure pupil area accurately.

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